SAM7X256 Atmel Corporation, SAM7X256 Datasheet - Page 669
SAM7X256
Manufacturer Part Number
SAM7X256
Description
Manufacturer
Atmel Corporation
Specifications of SAM7X256
Flash (kbytes)
256 Kbytes
Pin Count
100
Max. Operating Frequency
55 MHz
Cpu
ARM7TDMI
Hardware Qtouch Acquisition
No
Max I/o Pins
62
Ext Interrupts
62
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
2
Twi (i2c)
1
Uart
3
Can
1
Ssc
1
Ethernet
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
384
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
64
Self Program Memory
NO
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
3.3
Operating Voltage (vcc)
3.0 to 3.6
Fpu
No
Mpu / Mmu
no / no
Timers
3
Output Compare Channels
3
Input Capture Channels
3
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
No
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42. Revision History
6120I–ATARM–06-Apr-11
Version
6120I
Comments
Ordering Information:
Table 40-1, “Ordering Information”
The following ordering codes added to the table for MRL C.
AT91SAM7X256C-AU
AT91SAM7X256C-CU
AT91SAM7X128C-AU
AT91SAM7X128C-CU
Overview:
Section 9.5 ”Debug Unit”
“Chip ID
Product Series Naming Convention:
Except for part ordering and library references, AT91 prefix dropped from most nomenclature.
AT91SAM7X becomes SAM7X.
Errata:
Table 41-1, “Errata Summary
Section 41.6 ”AT91SAM7X256/128 Errata - Rev. C
Section 41.3 ”AT91SAM7X256/128 Errata - Rev. A
Section 41.4 ”AT91SAM7X512 Errata - Rev. A
Section 41.5 ”AT91SAM7X256/128 Errata - Rev. B
Section 41.4.3.1 ”EFC: Embedded Flash Access Time”
Section 41.3.10.3 ”USART: RXBRK Flag Error in Asynchronous
Section 41.4.11.3 ”USART: RXBRK Flag Error in Asynchronous
Section 41.5.10.3 ”USART: RXBRK Flag Error in Asynchronous
Electrical Characteristics:
Table 38-2, “DC Characteristics”
Table
EFC:
Section 19.2.4.4 ”General-purpose NVM
Figure 19-6,”Example of Partial Page Programming”
Debug and Test Features:
“MANUFACTURER
38-9,
Registers”, Chip IDs updated with reference to MRL A, B or C.
Table
The most recent version appears first in the tables that follow.
The acronymn “rfo” indicates change requests made by technical experts during document
approval.
38-10,
IDENTITY[11:1]”, AT91SAM7X128: JTAG ID Code value is 05B1_603F.
Table
Table”, added.
38-10, fixed typos in Units column: µW or W => µΩ or Ω.
V
OL
and V
Bits”, updated the last paragraph.
OH
rows revised (removed 1.65 t0 1.95V V
Parts”, added note specific to Rev A chip ID.
Parts”, added.
Parts”, added note specific to Rev A chip IDs.
Parts”, added note specific to Rev B chip IDs.
Text added befow figure
Problem Fix/Workaround, revised.
Mode”, Revised.
Mode”, Revised.
Mode”, Revised.
SAM7X512/256/128
VDDIO
values).
Change
Request
Ref.
7371
rfo
rfo
7371
rfo
6624
7211
6484
6233
6825
7354
673
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